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2 editions · 2 languages- Other · English · 1984University Press of America · 280 pages · 9780819143396
- Other · UND · 1961Heinemann Educational · 280 pages · 9780435550202
AstronomersBiographyMathematiciansKepler, johannes, 1571-1630Kepler's lawsCelestial mechanicsKepler, Johann, 1571-1630